2000021211 has 12 divisors (see below), whose sum is σ = 2889307200. Its totient is φ = 1333168560.

The previous prime is 2000021207. The next prime is 2000021227. The reversal of 2000021211 is 1121200002.

It is not a de Polignac number, because 2000021211 - 2² = 2000021207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2000021193 and 2000021202.

It is not an unprimeable number, because it can be changed into a prime (2000021251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123990 + ... + 139188.

It is an arithmetic number, because the mean of its divisors is an integer number (240775600).

Almost surely, 2^2000021211 is an apocalyptic number.

2000021211 is a deficient number, since it is larger than the sum of its proper divisors (889285989).

2000021211 is a wasteful number, since it uses less digits than its factorization.

2000021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29826 (or 29823 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2000021211 is about 44721.5966955564. The cubic root of 2000021211 is about 1259.9255039100.

Adding to 2000021211 its reverse (1121200002), we get a palindrome (3121221213).

The spelling of 2000021211 in words is "two billion, twenty-one thousand, two hundred eleven".